Palestinian president Mahmoud Abbas and his advisers are expressing a kind of optimism not heard in years.

Abbas told Japanese reporters last month that he is prepared to hold a trilateral meeting with Prime Minister Benjamin Netanyahu in Washington “under the patronage of President Trump.”

Jibril Rajoub, a top Palestinian official and a leader of the dominant Fatah political party, told The Washington Post on Monday: “We are very optimistic. I was in the States recently, and I was told this conflict is a priority issue for President Trump and he is serious to engage and have the ultimate deal.”

Rajoub added: “From our side we will cooperate with President Trump. We believe that he is not in the pocket of anyone, except the American people.” Trump’s “America first” policy extends to national security, “which means settling the core of the conflict in the Middle East,” he said.

Abbas and his aides insist that movement is possible on this issue and say Trump just might be able to make headway.

Vice President Mike Pence had said Tuesday that President Donald Trump is seriously considering moving the U.S. embassy in the occupied territories from Tel Aviv to Jerusalem [Al-Quds] — something he pledged to do as a candidate that would nonetheless prove controversial.

Previous presidents like Bill Clinton and George W. Bush had said they would move the embassy to Al-Quds while campaigning but didn’t follow through on the pledge. Some experts have warned that relocating the embassy could inflame tensions in the Middle East and doom the peace negotiations between the Israelis and the Palestinians.